Now showing items 1-10 of 26
Reversible to irreversible transitions in periodically driven skyrmion systems
(Institute of Physics Publishing, 2019-01-08)
We examine skyrmions driven periodically over random quenched disorder and show that there is a transition from reversible motion to a state in which the skyrmion trajectories are chaotic or irreversible. We find that the ...
Effect of the Magnus force on skyrmion relaxation dynamics
(Amer Physical Soc, 2018-01-10)
We perform systematic Langevin molecular dynamics simulations of interacting skyrmions in thin films. The interplay between Magnus force, repulsive skyrmion-skyrmion interaction and thermal noise yields different regimes ...
Chromosome–nuclear envelope attachments affect interphase chromosome territories and entanglement
Background It is well recognized that the interphase chromatin of higher eukaryotes folds into non-random configurations forming territories within the nucleus. Chromosome territories have biologically significant properties, ...
Social distancing and epidemic resurgence in agent-based Susceptible-Infectious-Recovered models
Once an epidemic outbreak has been effectively contained through non-pharmaceutical interventions, a safe protocol is required for the subsequent release of social distancing restrictions to prevent a disastrous resurgence ...
Parallel temperature interfaces in the Katz-Lebowitz-Spohn driven lattice gas
We explore a variant of the Katz–Lebowitz–Spohn (KLS) driven lattice gas in two dimensions, where the lattice is split into two regions that are coupled to heat baths with distinct temperatures. The geometry was arranged ...
Self-assembled PCBM bilayers on graphene and HOPG examined by AFM and STM
In this work we report fabrication and characterization of phenyl-C61-butyric acid methyl ester (PCBM) bilayer structures on graphene and highly oriented pyrolytic graphite (HOPG). Through careful control of the PCBM ...
Exploring optimization strategies for improving explicit water models: Rigid n-point model and polarizable model based on Drude oscillator
Rigid n-point water models are widely used in atomistic simulations, but have known accuracy drawbacks. Increasing the number of point charges, as well as adding electronic polarizability, are two common strategies for ...
Mechanisms for Differential Protein Production in Toxin–Antitoxin Systems
Toxin–antitoxin (TA) systems are key regulators of bacterial persistence, a multidrug-tolerant state found in bacterial species that is a major contributing factor to the growing human health crisis of antibiotic resistance. ...
Strongly Bent Double-Stranded DNA: Reconciling Theory and Experiment
The strong bending of polymers is poorly understood. We propose a general quantitative framework of polymer bending that includes both the weak and strong bending regimes on the same footing, based on a single general ...
The spatiotemporal system dynamics of acquired resistance in an engineered microecology
(Nature Publishing Group, 2017-11-22)